| (19) |
 |
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(11) |
EP 2 431 502 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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25.11.2015 Bulletin 2015/48 |
| (43) |
Date of publication A2: |
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21.03.2012 Bulletin 2012/12 |
| (22) |
Date of filing: 20.09.2011 |
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| (51) |
International Patent Classification (IPC):
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| (84) |
Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Designated Extension States: |
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BA ME |
| (30) |
Priority: |
21.09.2010 US 385066 P
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| (71) |
Applicant: Rohm and Haas Electronic Materials LLC |
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Marlborough, MA 01752 (US) |
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| (72) |
Inventors: |
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- Clauss, Margit
6010 Kriens (CH)
- Zhang-Beglinger, Wan
6043 Adiigenswil (CH)
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| (74) |
Representative: Houghton, Mark Phillip et al |
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Patent Outsourcing Limited
1 King Street
Bakewell, Derbyshire DE45 1DZ
Bakewell, Derbyshire DE45 1DZ (GB) |
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| (54) |
Cyanide-free silver electroplating solutions |
(57) A cyanide-free silver electroplating solution may be used to electroplate mirror
bright silver layers at high current density ranges and at high temperatures such
as in reel-to-reel electroplating. The cyanide-free silver electroplating solution
is environmentally friendly.